You can only have references to the following:

• scalars
• arrays
• hashes
• globs
• _your_ subroutines (not Perl's)
• packages (objects)
• compilied regexes
• and references

If you need to hang on to a reference to an 'eval', try placing the eval inside a subroutine and reference the subroutine instead. What is the context, by the way?

UPDATES:
tye clarified me on 'built-in'
i added compiled regexes to the list

Jeff

R-R-R--R-R-R--R-R-R--R-R-R--R-R-R--
L-L--L-L--L-L--L-L--L-L--L-L--L-L--